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Brian Fasteners is a renowned US manufacturer and supplier based in Houston, which focuses on providing superior fastening solutions for the harshest industrial conditions. Some of our high-grade products include our precision-technical Copper Nickel 70/30 Bolts. These bolts are designed to offer top-notch reliability and long-term durability in corrosive and high-stress applications, reflecting our excellence in fulfilling the stringent requirements of industries like marine, oil and gas, and chemical processing.
Copper Nickel 70/30 Bolts consist mostly of about 70% copper and 30% nickel, with the addition of trace amounts of iron (0.4-1.0%) and manganese (up to 1%). The alloy provides excellent corrosion resistance, particularly in saltwater applications, and maintains strength at high temperatures. The standard mechanical properties are tensile strength between 50,000 and 75,000 psi (345-517 MPa), a yield strength between 20,000-70,000 psi (138-483 MPa), and good ductility with 30-45% elongation.
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
|---|---|---|---|---|---|---|
| Copper Nickel | 65.0 min | 1 max | .05 max | 29-33 | 0.4-1.0 | 1 max |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength, ultimate | 372-517 MPa | 54000-75000 psi |
| Tensile strength, yield (depending on temper) | 88.0-483 MPa | 12800-70100 psi |
| Elongation at break (in 381 mm) | 45.0% | 45.0% |
| Charpy impact | 107 J | 78.9 ft-lb |
| Machinability (UNS C36000 (free-cutting brass) = 100%) | 20% | 20% |
| Shear modulus | 57.0 GPa | 8270 ksi |
| Poisson’s ratio | 0.34 | 0.34 |
| Elastic modulus | 150 GPa | 21800 ksi |
| Grade | Copper Nickel |
| Specifications | ASTM / ASME SB 151, SB 152 |
| Standards | DIN, ASTM, BS and all International Standards |
| Length | UPTO 5 METERS |
| Size | M4 To M100 | Custom Sizes |
| Form | Bolts |
| Types | Hex Bolts, Flange Bolts, Hex Head Bolts, Lag Bolts, Square Bolts, Eye Bolts, U Bolts, T Bolts, Counter sunk Bolts |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Copper Nickel 70/30 Bolts are widely utilized in severe duty applications demanding high strength and strong corrosion resistance. They find their major applications in marine structures, offshore drilling rigs, and piping systems exposed to seawater or brackish water. They are also invaluable in heat exchangers, condensers, and other equipment in chemical plants, power generation plants, and general engineering, delivering sound fastening in aggressive and high-temperature environments.
At Brian Fasteners, our Copper Nickel 70/30 Bolts are packed in a way that they reach the clients in the best condition possible. Every bolt is covered and placed in individual well-sealed and moisture proof packages to ensure that they are not contaminated or damaged. Labeling is very important since it makes identification of the items easier and handling is also made easier. The kind of packaging we use ensures that the bolts do not lose their quality and are readily available for use, thereby underlining our policy of offering high-quality products and excellent customer relations.
Brian Fasteners is a leading manufacturer and supplier of high-quality fasteners in Houston , USA, with over 8 years of experience serving global industries.
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